Electro-therapeutic apparatus



(No Model.) 2 Sheets-Sl1eet 1.

0. L. CLARKE. ELEOTRO THERAPEUTIC APPARATUS. No. 305,894. Patented Sept.80, 1884.

FIG:1. F ak-2 FIG:5. FIGtG.

' Wia'wasszis- INVENTOR MQ-QW WQZM M NY FEXERS mumm Washington. 0.1:.

(No Model.) 2 Sheets-Sheet 2.

0. L. CLARKE.

ELEUTRO THERAPEUTIC APPARATUS. No. 305,894. A PatentedlSept. 30, 1884.

J? Z A I IPJ Zy 70225 orwey,

Urvrrsn STATES PATENT @FMQE.

CHARLES L. CLARKE, OF MANCHESTER, COUNTY OF LANCASTER, ENGLAND, ASSIGNORTO THE DOMESTIC ELECTRICAL MANUFACTURING COMPANY,

OF BOSTON, MASSACHUSETTS.

ELECTRO-THERAPEUTlC APPARATUS.

SPELEFICATION forming part of Letters Patent No. 305,896, datedSeptember 30, 1884.

Application filed October 15, 1853. (No model.)

To and? whom it may concern.-

Be it known that 1, CHARLES LEIGH CLARKE, a subject of the Queen ofGreat Britain, and residing at Manchester, county of Lancaster,

5 England, haveinvented an Improved Electro- Therapeutic Apparatus, ofwhich the following is a specification.

The object of this invention is to produce in a minimum size and ataminimum cost, for

re the use of all medical men and others employing galvanisin as aremedial agent, a pocket medical battery and induction apparatus capableof producing the maximum effect, coinpaot and'simple in construction,easily and r5 quickly prepared for use, and as readily repacked for thepocket.

In carrying my invention into effect I construct the improved portablegalvanic apparatns as illustrated in the accompanying d raw- 2 ings, .inwhich- Figure 1 is a vertical section of the apparatus complete. Fig. 2is a reverse side view with the veneer or other covering removed. Fig. 3is a plan view with the lid open; Fig.

2 5 4, detached viewsof handles and other accesseries,- Fig. 5, aperspective view of the apparatus packed for the pocket, but with thelid open. Fig. 6 is a similar view of the apparatus as arranged for use,and Fig. 7 is a dia- 0 grammatic view illustrating thecircuitconnections.

I make the containing-case a- 0. out of a solid block of wood or othernon-conducting material, in which are bored longitudinally three holesor cells, b c d, side by side, the first, 22, being to contain theinduction-coilc, the second hole, 0, being to receive the handles andother accessories, and the third, (I, to receive the hermetically-sealedbattery-cellflf, which,

0 when in place, is retained by a suitable hasp, f. The three holes withtheir contents are closed by a hinged lid, r. p

The sea-led batteries, which'are in the form of cartridges, are madeinterchangeable-that is, they may be readily changed one 'for another.Thus on releasing the hasp f the battery may be removed and a fresh onereadily substituted without the manipulation of any connecting-screws.

Instead of using one battery f, two short sealed batteries may beinclosed in the hole d, their interchangeable character being furtherillustrated by the facts that these batteries are identical inconstruction and character, and that it is immaterial which is insertedfirst.

The connections are made as follows: At the bottom of the hole d d, forthe reception of the battery f f, is securedacontact-spring, g g, onwhich the brass cap All, which forms one pole of the battery, rests.This spring 9' g is connected with the end of the primary coil by awire, 2 i, placed in a groove on the outside of the block. (See Fig. 2.)Connection with the other pole ofthe battery is made by a small lever orswitch, k k, which is connected by a short wire, Z Z, Fig. 2, running inagroove in the outside olthe block a a to one side of thecontact-breaker m m. This lever or switch is movable, (as is wellunderstood,) and is shown in action in Fig. 3, and out of action in Fig.5. A movable peg or other equivalent device will answer this purpose.The other side of the contact-breaker m m is connected to the beginningof the primary coil. For collecting the induced currents from the 7primary and secondary coils, three studs are provided, each drilled toreceive a peg attached to the connecting cords or wires or a, used withthe handles 0 0. These studs, Nos. 1, 2, and 3, are screwed through theblock a a, the drilled ends being brought flush with the-surfacesthereof, and to the other ends the connections are made as follows, Fig.7: The commencement of the primary coil is connected to No. 1, and isalso connected to the contactbreaker, the end of the primary and thebeginning of the secondary coil to No. 2, and the end of the secondaryto No. 3.

By attaching the conducting cords or wires n andn to Nos. 1 and 2, theinduced extra 0 current of the primary can be used; Nos. 2 and 3 givethe secondary current, and by using Nos. 1 and 3 the combined effect ofprimary and secondary (that is, the whole force ,of the induction-coil ee) is obtained.

When these connections have been made, as shown in Fig. 2, the whole ofthe outside is finished with a covering of veneer or other suitablematerial.

To regulate the strength of the induced cur- ICO rents a brass tube orintensifier, 1) 1), slides over the core of the induction-coil, and canbe drawn out more or less, as desired.

I make the handles 0 0 and one of the ebonite insulators q q hollow, asshown in Fig. 4, and so that they will nest one inside the other whenrequired to be packed into the hole or cell c c.

The handles or electrodes 0 0 are detachable from the conducting-cords,and the in sulators or non-conducting extensions q q may be screwed intothe handles -or electrodes, as shown in Fig. 7. The flexible conductorsn are united with the metal electrodes 0 0 by their tags, which areinserted in. small holes provided for them in the sides of theelectrodes.

I claim as my invention- The herein-described electro-therapeuticapparatus, consisting of a solid non-conducting casing having threeholes or receptacles therein side by side, one containing aninductioncoil, one an interchangeable battery, and the third adapted forthe reception of the handles and accessories, and the whole closed by alid, substantially as described. 1

In testimony whereof I have signed my name to this specification in thepresen'ceof two subscribing witnesses.

GEORGE DAVIES, JOHN HUGHES.

